An Application of Ray Theory to the Identification of Long-Range Multipaths,

Abstract

Techniques for the identification of multipaths received at long range during the prosecution of Project POSAC are discussed in terms of Ray Theory. Bottom-reflected arrivals are readily treated by a procedure employing a greatly simplified model of the ocean. Refracted propagation pertinent to these tests is explained as an interchange of energy between the SOFAR channel and an overlying shallow duct, while certain restrictions formerly credited to this mechanism are found to be unnecessary. In comparing the observed refracted data with the results of a Datatron ray-tracing program, the agreement is greatly improved by the use of recent NOL sound velocity tables. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 24, 1961
Accession Number
AD0758087

Entities

People

  • M. R. Powers
  • W. H. Thorp

Organizations

  • Navy Underwater Sound Laboratory

Tags

DTIC Thesaurus Topics

  • Agreements
  • Applied Computer Science
  • Computer Graphics
  • Computer Science
  • Graphics
  • Identification
  • Ray Tracing

Readers

  • Acoustical Oceanography.
  • Systems Analysis and Design
  • Wave Propagation and Nonlinear Chaotic Dynamics.